Effects of Climate and Atmospheric Nitrogen Deposition on Early to Mid-Term Stage Litter Decomposition Across Biomes

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dc.contributor.author TeaComposition Network
dc.contributor.author Kwon, TaeOh
dc.contributor.author Shibata, Hideaki
dc.contributor.author Kepfer-Rojas, Sebastian
dc.contributor.author Schmidt, Inger K.
dc.contributor.author Larsen, Klaus S.
dc.contributor.author Beier, Claus
dc.contributor.author Berg, Björn
dc.contributor.author Verheyen, Kris
dc.contributor.author Lamarque, Jean-Francois
dc.contributor.author Hagedorn, Frank
dc.contributor.author Eisenhauer, Nico
dc.contributor.author Djukic, Ika
dc.contributor.author Loehr, John
dc.contributor.author Virkkala, Anna-Maria
dc.contributor.author Luoto, Miska
dc.date.accessioned 2021-08-17T09:21:01Z
dc.date.available 2021-08-17T09:21:01Z
dc.date.issued 2021-07-14
dc.identifier.citation TeaComposition Network , Kwon , T , Shibata , H , Kepfer-Rojas , S , Schmidt , I K , Larsen , K S , Beier , C , Berg , B , Verheyen , K , Lamarque , J-F , Hagedorn , F , Eisenhauer , N , Djukic , I , Loehr , J , Virkkala , A-M & Luoto , M 2021 , ' Effects of Climate and Atmospheric Nitrogen Deposition on Early to Mid-Term Stage Litter Decomposition Across Biomes ' , Frontiers in Forests and Global Change , vol. 4 , 678480 . https://doi.org/10.3389/ffgc.2021.678480
dc.identifier.other PURE: 167657131
dc.identifier.other PURE UUID: a097a1a0-b064-48e6-9963-9026968e9967
dc.identifier.other WOS: 000678671500001
dc.identifier.other ORCID: /0000-0001-6203-5143/work/108462038
dc.identifier.other ORCID: /0000-0003-4877-2918/work/108466560
dc.identifier.uri http://hdl.handle.net/10138/333244
dc.description.abstract Litter decomposition is a key process for carbon and nutrient cycling in terrestrial ecosystems and is mainly controlled by environmental conditions, substrate quantity and quality as well as microbial community abundance and composition. In particular, the effects of climate and atmospheric nitrogen (N) deposition on litter decomposition and its temporal dynamics are of significant importance, since their effects might change over the course of the decomposition process. Within the TeaComposition initiative, we incubated Green and Rooibos teas at 524 sites across nine biomes. We assessed how macroclimate and atmospheric inorganic N deposition under current and predicted scenarios (RCP 2.6, RCP 8.5) might affect litter mass loss measured after 3 and 12 months. Our study shows that the early to mid-term mass loss at the global scale was affected predominantly by litter quality (explaining 73% and 62% of the total variance after 3 and 12 months, respectively) followed by climate and N deposition. The effects of climate were not litter-specific and became increasingly significant as decomposition progressed, with MAP explaining 2% and MAT 4% of the variation after 12 months of incubation. The effect of N deposition was litter-specific, and significant only for 12-month decomposition of Rooibos tea at the global scale. However, in the temperate biome where atmospheric N deposition rates are relatively high, the 12-month mass loss of Green and Rooibos teas decreased significantly with increasing N deposition, explaining 9.5% and 1.1% of the variance, respectively. The expected changes in macroclimate and N deposition at the global scale by the end of this century are estimated to increase the 12-month mass loss of easily decomposable litter by 1.1-3.5% and of the more stable substrates by 3.8-10.6%, relative to current mass loss. In contrast, expected changes in atmospheric N deposition will decrease the mid-term mass loss of high-quality litter by 1.4-2.2% and that of low-quality litter by 0.9-1.5% in the temperate biome. Our results suggest that projected increases in N deposition may have the capacity to dampen the climate-driven increases in litter decomposition depending on the biome and decomposition stage of substrate. en
dc.format.extent 18
dc.language.iso eng
dc.relation.ispartof Frontiers in Forests and Global Change
dc.rights cc_by
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject tea bag
dc.subject Green tea
dc.subject Rooibos tea
dc.subject litter decomposition
dc.subject carbon turnover
dc.subject nitrogen deposition
dc.subject TeaComposition initiative
dc.subject FOLIAR LITTER
dc.subject N DEPOSITION
dc.subject RATES
dc.subject RESPONSES
dc.subject PATTERNS
dc.subject LEAF
dc.subject TEMPERATURE
dc.subject 1181 Ecology, evolutionary biology
dc.title Effects of Climate and Atmospheric Nitrogen Deposition on Early to Mid-Term Stage Litter Decomposition Across Biomes en
dc.type Article
dc.contributor.organization Department of Forest Sciences
dc.contributor.organization Lammi Biological Station
dc.contributor.organization Biological stations
dc.contributor.organization Department of Geosciences and Geography
dc.contributor.organization Helsinki Institute of Sustainability Science (HELSUS)
dc.contributor.organization BioGeoClimate Modelling Lab
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.3389/ffgc.2021.678480
dc.relation.issn 2624-893X
dc.rights.accesslevel openAccess
dc.type.version publishedVersion

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